The issue of young Australian Muslims being radicalised has never been more live.

Over 150 Australians are thought to be fighting with militants in the conflicts in Syria and Iraq. Canberra is alarmed and considering new digital surveillance powers for spy agencies while the foreign minister cancels passports of those who've gone to fight.

But NSW Police have been working hard on building better relations with local Muslim communities trying to combat radicalisation.

The senior NSW police officer who has been working on all this for a long time, Deputy Commissioner Nick Kaldas said, "we've got to recognise the problems and the things that are causing people angst in other parts of the world and talk openly and as frankly as we can with them about these things here in Sydney."